Comment implémenter la fonction d'album php : 1. Créez la page d'accueil de l'album et obtenez l'effet de pagination ; 2. Créez la page de traitement en arrière-plan ; 3. Implémentez la page de téléchargement d'album ; unlink($imgfile); ” et d’autres instructions peuvent être utilisées pour supprimer des images.
L'environnement d'exploitation de cet article : système Windows 7, PHP version 7.1, ordinateur DELL G3
Comment implémenter la fonction album photo php
Tutoriel sur la façon d'implémenter la fonction album photo (y compris téléchargement d'images php, gestion de l'arrière-plan, navigation et suppression) L'exemple comprend cinq parties :
1. Page d'accueil de l'album
<html> <head> <meta charset="utf-8"> <title>相册首页</title> <style> body{ width:800px; margin:0 auto; test-align:center; } </style> </head> <body> <h1>The simple photo album.</h1> <center> <?php error_reporting(0); if(!$_GET["page"]){ $page = 1; }else $page = $_GET["page"]; $filename = "data.dat"; $myfile = file($filename); $z = $myfile[0]; if($z == NULL){ echo "目前记录条数为:0"; }else{ $temp = explode("||",$myfile[0]); echo "共有".$temp[0]."条内容"; echo " "; $p_count = ceil($temp[0]/8); echo "分".$_count."页显示"; echo " "; echo "当前显示第".$page."页"; echo " "; echo "<br>"; if($page != ceil($temp[0]/8)){ $current_size = 8; }else{ $current_size = $temp[0]%8; } if($current_size == 0){ $current_size = 8; } for($i=0;$i<ceil($current_size/4);$i++){ for($j=0;$j<4;$j++){ $temp = explode("||", $myfile[$i*4+$j+($page-1)*8]); if(($i*4+$j+($page-1)*8)<$z){ $imgfile = "./images/".$temp[1]; $flag = getimagesize($imgfile); echo "<a href=viewimage.php?id=".$temp[0]."><img src=/test/images/".$temp[1]; if($flag[0]>180||$flag[1]>100){ echo " width=180 height=".ceil($flag[1]*180/$flag[0]); } echo " border=\"0\"></a>"; }else{ echo ""; } } } echo "</table>"; } echo "<p>"; $prev_page = $page - 1; $next_page = $page + 1; if($page <= 1){ echo "第一页 | "; }else{ echo "<a href='$PATH_INFO?page=1'>第一页</a> | "; } if($prev_page < 1){ echo "上一页 | "; }else{ echo "<a href='$PATH_INFO?page=$prev_page'>上一页</a> | "; } if($next_page > $p_count){ echo "下一页 | "; }else{ echo "<a href='$PATH_INFO?page=$next_page'>下一页</a> | "; } if($page >= $p_count){ echo "最后一页</p>\n"; }else{ echo "<a href='$PATH_INFO?page=$p_count'>最后一页</a></p>\n"; } ?> </center> <a href="upfile.php">Upload Files</a> </body> </html>
2. Gestion du backend
<html> <head> <meta charset="utf-8"> <title>后台处理页面</title> </head> <body> <?php error_reporting(1); if($_FILES['upfile']['name'] == NULL){ echo "No file choice."; echo "<a href='upfile.php'>返回</a>"; }else{ $filepath = "/Library/WebServer/Documents/test/images/"; $tmp_name = $_FILES['upfile']['tmp_name']; $filename = $filepath.$_FILES['upfile']['name']; // echo $filename; if(move_uploaded_file($tmp_name,$filename)){ $dataname = "data.dat"; $myfile = file($dataname); if($myfile[0] == ""){ $fp = fopen($dataname, "a+"); fwrite($fp,"1||".$_FILES['upfile']['name']."||".$_POST["content"]."||".date(Y年m月d日)."\n"); fclose($fp); }else{ $temp = explode("||", $myfile[0]); $temp[0]++; $fp = fopen($dataname, "r"); $line_has = fread($fp,filesize("$dataname")); fclose($fp); $fp = fopen($dataname, "w"); fwrite($fp,$temp[0]."||".$_FILES['upfile']['name']."||".$_POST["content"]."||".date("Y年m月d日")."\n"); fwrite($fp,"$line_has"); fclose($fp); } echo "<p></p>"; echo "指定文件已经上传成功!"; echo "<p></p>"; echo "点<a href='index.php'>返回</a>"; }else{ echo "文件上传失败!"; } } ?> </body> </html>
3. Téléchargement d'images
<html> <head> <meta charset="utf-8"> <title>相册上传页面</title> </head> <body> <script language="javascript"> function Juge(theForm){ if(theForm.upfile.value==""){ alert("Please choice file!"); theForm.upfile.focus(); return (false); } if(theForm.content.value==""){ alert("Please input image information!"); theForm.content.focus(); return (false); } if(theForm.content.value.length>60){ alert("The information must less than 60 chars."); theForm.content.focus(); return (false); } } </script> <center> <h1>Image album upload page</h1> <p> <a href="index.php">返回首页</a> <table border="1"> <form enctype="multipart/form-data" action="system.php" method="post" onsubmit="return Juge(this)"> <tr> <td>选择图片:</td> <td><input name="upfile" type="file"></td> </tr> <tr> <td>输入说明:</td> <td><input name="content" type="text">(*限30字)</td> </tr> <tr> <td colspan="2"> <center> <input type="submit" value="提交"> <input type="reset" value="重置"> </center> </td> </tr> </form> </table> </p> </center> </body> </html>
4. pictures
<html> <head> <meta charset="utf-8"> <title>查看图片</title> </head> <body> <center> <h1>View images.</h1> <?php error_reporting(0); if(!$_GET["id"]){ echo "No assign id."; echo "<a href='index.php'>首页</a>"; exit(); }else{ ?> <a href="index.php">返回首页</a> <a href="delimage.php?id=<?php echo $_GET['id'] ?>">删除图片</a><br> <?php $id = $_GET["id"]; $filename = "data.dat"; $myfile = file($filename); $z = $myfile[0]; if($z == ""){ echo "目前记录条数为0"; }else{ $temp = explode("||", $myfile[$z-$id]); echo "<p>"."文件名:".$temp[1]."</p>"; echo "<p><img src=/test/images/".$temp[1]."></p>"; echo "<p>图片简介:".$temp[2]."</p>"; echo "<p>上传日期:".$temp[3]."</p>"; } } ?> </center> </body> </html>
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